Home / 1,185,457.95-1,778,187.02-286,899.84

Finding the Fourth Proportional to 1,185,457.95, 1,778,187.02 and 286,899.84

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Solution

The fourth proportional to 1,185,457.95, 1,778,187.02 and 286,899.84 is: 430,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,457.95 : 1,778,187.02 = 286,899.84 : x
  2. Step 2: Convert to fraction form
    1,185,457.95/1,778,187.02 = 286,899.84/x
  3. Step 3: Cross multiply
    1,185,457.95x = 1,778,187.02 × 286,899.84
  4. Step 4: Simplify right side
    1,185,457.95x = 510,161,570,093.58
  5. Step 5: Solve for x
    x = 510,161,570,093.58/1,185,457.95
  6. Step 6: Final answer
    x = 430,349.78

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Half scale
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Double scale
Find fourth proportional to 1,185,458.95, 1,778,188.52 and 286,900.84
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.